AU4299999A - Electro-acoustic transducer with electrically conducting membrane - Google Patents

Electro-acoustic transducer with electrically conducting membrane

Info

Publication number
AU4299999A
AU4299999A AU42999/99A AU4299999A AU4299999A AU 4299999 A AU4299999 A AU 4299999A AU 42999/99 A AU42999/99 A AU 42999/99A AU 4299999 A AU4299999 A AU 4299999A AU 4299999 A AU4299999 A AU 4299999A
Authority
AU
Australia
Prior art keywords
electro
electrically conducting
acoustic transducer
conducting membrane
membrane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU42999/99A
Inventor
Erik Liljehag
Tomas Westermark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of AU4299999A publication Critical patent/AU4299999A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
AU42999/99A 1998-04-22 1999-04-22 Electro-acoustic transducer with electrically conducting membrane Abandoned AU4299999A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9801413 1998-04-22
SE9801413A SE9801413L (en) 1998-04-22 1998-04-22 Electroacoustic converter with electrically conductive membrane
PCT/SE1999/000654 WO1999055118A1 (en) 1998-04-22 1999-04-22 Electro-acoustic transducer with electrically conducting membrane

Publications (1)

Publication Number Publication Date
AU4299999A true AU4299999A (en) 1999-11-08

Family

ID=20411055

Family Applications (1)

Application Number Title Priority Date Filing Date
AU42999/99A Abandoned AU4299999A (en) 1998-04-22 1999-04-22 Electro-acoustic transducer with electrically conducting membrane

Country Status (3)

Country Link
AU (1) AU4299999A (en)
SE (1) SE9801413L (en)
WO (1) WO1999055118A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6834113B1 (en) 2000-03-03 2004-12-21 Erik Liljehag Loudspeaker system
SE0001461L (en) * 2000-04-18 2001-10-19 Erik Liljehag Electroacoustic converter
CN101080944A (en) 2004-10-21 2007-11-28 罗伯特·J·克罗利 Acoustic ribbon transducer arrangements

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384173A (en) * 1980-08-01 1983-05-17 Granus Corporation Electromagnetic planar diaphragm transducer
WO1991004643A1 (en) * 1989-09-22 1991-04-04 Anthony Leonard Trufitt Planar speakers
US5430805A (en) * 1990-12-27 1995-07-04 Chain Reactions, Inc. Planar electromagnetic transducer

Also Published As

Publication number Publication date
WO1999055118A1 (en) 1999-10-28
SE9801413L (en) 1999-10-23
SE9801413D0 (en) 1998-04-22

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase